Best natural monuments around Thil-Manneville are found in the surrounding Seine-Maritime region, offering diverse natural landscapes. This area features dramatic coastal cliffs, picturesque gorges, and protected natural sites. These locations provide opportunities for outdoor activities and offer scenic views of the Norman coastline and its unique ecological features.
Last updated: July 6, 2026
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Highlight • Natural Monument
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A magnificent spot, offering breathtaking views. The two trails leading to the gorge are also very beautiful. Be careful on the descent; despite the improvements, it remains dangerous.
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You should keep an eye on the tides
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Immediately to the right of the church is a path leading down to the sea. The first section runs along a cow pasture, then it becomes very narrow, only two feet wide, and very steep. You pass under bushes, along slopes and precipices, along paths, and over steps. It's a steep descent, with railings not everywhere. Be careful: not all railings are stable, and in some places you're walking right along the precipice. The last stretch to the pebble beach is made up of rocks covered in algae, and it's slippery in places. The view is magnificent, and the hike a triumph, but not entirely without excitement or danger. The last stretch along the precipice is not suitable for children. When we were there, the wind was strong, force 5, with gusts of up to 6.7.
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A small, peaceful beach, ideal for relaxing and admiring the beautiful scenery. The GR 21 hiking trail passes just a few meters above.
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superb view of the beach with its wooden huts
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Magnificent place, be careful however with the accessibility with children. The view is there reward of the km route, and it is only the beginning, because the landscapes are diverse and varied as well as the terrain, but we recommend in dry weather if possible. Route from Sainte-Marguerite-sur-Mer to Varengeville returns GR 21
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The region around Thil-Manneville offers diverse natural features. You can discover dramatic coastal landscapes at Moutiers Gorge, where sea and rock converge, leading to a beautiful pebble beach. Another notable site is the Cap d'Ailly Protected Natural Site, which boasts rich biodiversity, combining towering cliffs with lush greenery and offering stunning views of the lighthouse.
Yes, several natural sites are suitable for families. Petit Ailly Beach is a secluded spot accessible via a quiet path through the forest, offering beautiful views. The Cap d'Ailly Protected Natural Site is also considered family-friendly, providing a relaxing environment to enjoy unspoiled nature and observe local wildlife.
The natural monuments in the region offer various hiking opportunities. For instance, Moutiers Gorge is accessible via the GR 21 hiking route, particularly at low tide. The Bois de Bernouville, a coastal woodland near Hautot-sur-Mer, provides numerous paths for hiking with scenic views over the Vallée de la Scie. You can find more hiking options in the area by exploring the Running Trails around Thil-Manneville guide, which includes routes like the 'Saint-Martin Church – Cliffs near Hermansville loop'.
Yes, the Bois de Bernouville, a significant coastal woodland, not only offers natural beauty but also holds historical interest with the ruins and moat of a medieval castle dating back to the 11th century. Additionally, while primarily a natural site, the Ailly Lighthouse stands on a dramatic headland, offering both historical context and panoramic natural views of the rugged Norman coastline.
Spring and autumn are particularly rewarding. In spring, the Bois de Bernouville is noted for its vibrant carpet of wildflowers, including primroses, daffodils, and bluebells. Autumn offers the chance to find blueberries in the same woodland. Coastal areas like Moutiers Gorge and the Cap d'Ailly Protected Natural Site can be enjoyed year-round, though checking tide times is crucial for beach access at the gorges.
While specific dog-friendly rules can vary by site, many natural outdoor areas in the region are generally accessible for dogs, especially on trails and paths, provided they are kept on a leash. It's always advisable to check local signage or specific site regulations before visiting, particularly for protected natural sites like the Cap d'Ailly Protected Natural Site.
The Cap d'Ailly Protected Natural Site is an important ornithological location, home to a rich biodiversity including many bird species such as the boreal and black tit, long-eared owl, and little owl. The coastal woodlands like Bois de Bernouville also support diverse flora and fauna, making them excellent spots for nature observation.
Yes, the Valleuse de Vasterival offers a more challenging experience. To reach this wild and isolated beach, you'll need to descend a fairly narrow and potentially steep path down the cliff, rewarding you with breathtaking views and a sense of seclusion.
Beyond hiking, the region offers various outdoor activities. You can explore cycling routes, such as those found in the Cycling around Thil-Manneville guide, which includes routes like the 'Ailly Lighthouse – Sainte-Marguerite Church loop'. Gravel biking is also popular, with options like the 'Varengeville-sur-Mer – At the foot of the cliffs loop' detailed in the Gravel biking around Thil-Manneville guide.
For a secluded experience, Petit Ailly Beach is an excellent choice, located at the end of a quiet path winding through the forest. Another option is the Valleuse de Vasterival, which offers a wild and intimate beach experience after a descent down the cliff.
Parking availability varies by location. For popular coastal sites like those near the Ailly Lighthouse or the gorges, designated parking areas are generally available, though they can fill up during peak season. For more remote spots or trailheads, roadside parking might be an option. It's recommended to check specific access points for each natural monument for detailed parking information.
Yes, the dramatic coastal landscape of the Gorge des Moutiers, near Varengeville-sur-Mer, was a source of inspiration for artists. Claude Monet was known to paint in this area, drawn by the unique convergence of sea and rock and the picturesque views of the Saint-Valéry church atop the white cliffs.


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